cirsium occidentale
heads densely cottony-hairy
Date: 03.18.2011 11:06:40 | Exposure: 1/320s

cirsium occidentale
all parts spiny
Date: 03.18.2011 11:07:12 | Exposure: 1/320s

cirsium occidentale var. occidentale
heads large, flowers pink to dark red, plants die after flowering
Date: 03.18.2011 11:08:05 | Exposure: 1/200s

cirsium occidentale var. occidentale

Date: 03.18.2011 11:10:47 | Exposure: 1/250s